Deductions & credits

I would say that the work qualifies.  However, you must be aware of:

1. there is a $200 lifetime maximum credit for efficient windows, if you used the credit before, your credit now may be limited.
2. there is a $500 lifetime maximum for all energy efficient improvements, if you used the credit before, your credit now may be limited.
3. the credit for windows is 10% of the cost of materials, not including installation.  If audited, you would need a cost breakdown from your contractor.
4. the panes must meet or exceed Energy Star version 6.0 certification.